linux-kernel - Re: [PATCH 01/16] initrd: Add generic code path for common initrd unloading logic.

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Message-ID: <CAMuHMdXwEL-gLxiVJwuxwRtkyhR=vEm3GP4dzJMpc1nS8AKxKQ@mail.gmail.com>
Date:   Wed, 28 Mar 2018 14:23:47 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Christoph Hellwig <hch@...radead.org>
Cc:     Shea Levy <shea@...alevy.com>, alpha <linux-alpha@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        arcml <linux-snps-arc@...ts.infradead.org>,
        linux-c6x-dev@...ux-c6x.org,
        "moderated list:H8/300 ARCHITECTURE" 
        <uclinux-h8-devel@...ts.sourceforge.jp>,
        linux-m68k <linux-m68k@...ts.linux-m68k.org>,
        nios2-dev@...ts.rocketboards.org,
        Openrisc <openrisc@...ts.librecores.org>,
        Parisc List <linux-parisc@...r.kernel.org>,
        linuxppc-dev@...ts.ozlabs.org, linux-riscv@...ts.infradead.org,
        Linux-sh list <linux-sh@...r.kernel.org>,
        uml-devel <user-mode-linux-devel@...ts.sourceforge.net>
Subject: Re: [PATCH 01/16] initrd: Add generic code path for common initrd
 unloading logic.

On Wed, Mar 28, 2018 at 2:04 PM, Christoph Hellwig <hch@...radead.org> wrote:
>> +#ifdef CONFIG_INITRAMFS_GENERIC_UNLOAD
>> +void free_initrd_mem(unsigned long start, unsigned long end)
>> +{
>> +       free_reserved_area((void *)start, (void *)end, -1, "initrd");
>> +}
>> +#endif
>
> Given how trivial this is and how many architectures can use it I'd
> reverse the polarity and add a CONFIG_HAVE_ARCH_FREE_INITRD_MEM
> instead.

And while adding "special" functionality to the generic version, more and more
users of CONFIG_HAVE_ARCH_FREE_INITRD_MEM will be removed.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds